Most Emission-Efficient Bulk Carriers

Ships ranked by AER (Annual Efficiency Ratio) — grams of CO₂ emitted per tonne of deadweight carried one nautical mile (g CO₂/dwt·nm), the IMO carbon-intensity metric behind the CII rating — from official EU MRV emissions data for reporting year 2025. Lower is greener. Pick a segment and size class to see the greenest vessels first.

Segment rank (2025)

#766 of 3,436 bulk carriers

CO₂ intensity

3.5 g CO₂/dwt·nm

vs segment average (4.71)

-25% greener

Bulk Carrier Container Ship Oil Tanker Chemical Tanker Gas Carrier LNG Carrier General Cargo Vehicle Carrier Refrigerated Cargo Ro-Ro Cargo

Sort 🌱 Greenest first 🔧 Least efficient first — retrofit candidates

Size (DWT)

All sizes < 25,000 DWT 25k – 60k DWT 60k – 100k DWT 100k – 200k DWT > 200,000 DWT

Year

2025 2024

3,507

vessels ranked

1.74

greenest (g CO₂/t·nm)

4.46

segment median

#	Vessel	Size (DWT)	Built	Length	Main Engine	Carbon intensity — AER (g CO₂/dwt·nm)	Grade
764	CIC ROLACO IMO 9567116	175,641	2012	292 m	Hitachi - 6S70MC6	3.5	B
760	JOSCO DEZHOU IMO 9683439	61,657	2014	200 m	Hudong Heavy Machinery - 6S50ME-B9	3.5	B
765	PANOPI IMO 9554183	88,101	2010	230 m	Mitsui - 6S60MC	3.5	B
756	JY LAKE IMO 9845257	81,146	2019	229 m	Hudong Heavy Machinery - 6S70ME-C	3.5	B
763	CENTURY SHANGHAI IMO 9835070	81,738	2018	229 m	MAN - 6S60ME	3.5	B
762	NORD SUNDA IMO 9860738	63,343	2019	200 m	MAN - 6S50ME-B9	3.5	B
761	INDIGO ACE IMO 9758387	81,786	2014	229 m	Mitsui - 6S60ME-C8.2	3.5	B
755	BULK VENUS IMO 9744520	63,371	2017	200 m	Hitachi - 6S50MC-C-8	3.5	B
759	CORATO IMO 9749829	81,677	2016	229 m	MAN - 6S60ME-C8.2	3.5	B
758	DARYA AUM IMO 9768605	81,109	2018	229 m	MAN - 6S60ME-C	3.5	B
757	PLAINPALAIS IMO 9739032	81,756	2015	229 m	MAN - 6S60MC-C8	3.5	B
754	CARDIFF IMO 9966568	90,014	2024	229 m	UnKnown 5G60ME-C10	3.5	B
753	GCL MOBILE IMO 9957488	82,525	2023	229 m	MAN-B&W 6S60ME-C10	3.5	B
752	IRIS BLISS IMO 9766944	82,103	2016	229 m	MAN - 6S60MC-C8	3.5	B
751	FIJI IMO 9630664	81,285	2013	229 m	STX - 5S60MC-C8	3.5	B
769	KAPTA DIMITROS IMO 9928736	61,091	2022	200 m	Hudong Heavy Machinery - 6S50ME-B9	3.5	B
768	IZUMI IMO 9901831	82,005	2021	229 m	MAN - 6S60ME-C8	3.5	B
766	ORIENT CENTAUR IMO 9464572	114,841	2010	255 m	MAN - 6S60MC-C	3.5	B
772	HONG HING IMO 9563615	76,549	2010	225 m	Hudong Heavy Machinery - 5S60MC	3.5	B
771	LONGEVITY DIVA IMO 9905629	82,502	2021	229 m	MAN - 6S60ME-C10	3.5	B
770	ATHENA CENTURY IMO 9599092	82,073	2013	229 m	Mitsui - 7 S 50 MC-C	3.5	B
767	WHEAT WEIFANG IMO 9883766	80,868	2020	229 m	6S60ME-C8.2	3.5	B
775	NAVIOS CITRINE IMO 9782170	81,626	2017	229 m	Mitsui - 6S60ME-C8	3.5	B
777	CL JIANGMEN IMO 9977385	64,768	2024	200 m	MAN-B&W 6S50ME-C9	3.5	B
774	G ATLANTIC IMO 9284910	76,466	2004	225 m	Mitsui - 7 S 50 MC-C	3.5	B
785	AQUADONNA IMO 1013676	63,526	2024	200 m	MAN-B&W 6S50ME-C10	3.5	B
784	SPRING COSMOS IMO 9666027	63,273	2014	200 m	Wärtsilä - 5RT-flex58T	3.5	B
773	YUE GUAN FENG IMO 9523158	75,581	2010	225 m	Hudong Heavy Machinery - 5S60MC	3.5	B
783	LADY ANNE IMO 9866184	81,688	2020	229 m	MAN - 6S60ME-C8	3.5	B
782	GLORY ALBATROSS IMO 9591571	95,608	2011	235 m	Mitsui - 6S60MC	3.5	B
781	WORLD PROSPER IMO 9911721	82,065	2021	229 m	MAN - 6S60ME-C8	3.5	B
780	ZONDA IMO 9476484	93,263	2011	229 m	STX - 6 S 60 MC-C 7	3.5	B
779	ANEMOS IMO 9331529	75,397	2006	225 m	Hitachi - 6S60MC	3.5	B
778	SILVERGATE IMO 9682930	77,239	2014	225 m	MAN - 6S60MC	3.5	B
776	ASIAN ETERNITY IMO 9991472	64,683	2024	200 m	MAN-B&W 6S50ME-C9	3.5	B
788	GCL HAZIRA IMO 9926726	81,986	2021	229 m	MAN - 6S50ME-C8	3.5	B
796	BRIGHTON IMO 9966817	64,701	2024	200 m	Hudong Heavy Machinery Co Ltd - China 6S50ME-C9-HPSCR	3.5	B
797	EMERALD DONGJI IMO 9726528	81,547	2015	229 m	MAN - 6S60ME-C8	3.5	B
792	DONOUSA IMO 9284867	76,417	2004	225 m	Mitsui - GK-2230-1300/1200	3.5	B
795	NYON IMO 9888039	63,465	2021	200 m	MAN - 6S50ME-C9	3.5	B
794	EPIC HARMONY IMO 9922005	82,546	2021	229 m	Mitsui Engineering & Shipbuilding C Ltd - Japan 6S60ME-C10-EGRBP	3.5	B
793	SEA DAWN IMO 9711937	80,915	2014	229 m	MAN - 6S60ME-C	3.5	B
791	TAI SPRING IMO 9771092	62,487	2016	200 m	Mitsui - 6S50MC-C	3.5	B
790	MAGIC P IMO 9288447	76,453	2004	225 m	MAN - 7S50MC-C	3.5	B
789	LUCA IMO 9894806	63,647	2021	200 m	MAN - 6S50MC-B9	3.5	B
787	THOUSAND SPRING IMO 9867425	81,763	2020	229 m	MAN - 6S60ME-C	3.5	B
786	MEGHNA LEGACY IMO 9846275	63,449	2019	200 m	Hitachi - 6S50ME-B9	3.5	B
798	IONIC PRIDE IMO 9749300	84,992	2014	229 m	Mitsui - 6S60ME-C8	3.5	B
800	TAI KNOWLEDGE IMO 9799721	82,008	2017	229 m	Mitsui - 6S60ME-C8	3.6	B
799	MIGHTY STAR IMO 9860881	81,635	2020	229 m	Mitsui - 6S60ME-C8	3.6	B

Page 16 of 69 — 3,436 vessels

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Engine intelligence

Which engines power the greenest fleets?

The main engine is the single largest CO₂ source on board — typically well over 80% of a ship's emissions come from propulsion. We aggregated this ranking the other way around: every engine design is scored by the measured carbon intensity of the vessels carrying it, licensee-built units merged under their design brand. The verdict from the 2025 data — modern dual-fuel designs like MAN B&W's ME-GI and WinGD's X-DF families, together with EGR/SCR-abated and ultra-long-stroke G-type engines, consistently power the most emission-friendly ships in service.

Emission-friendly engine ranking

AER (Annual Efficiency Ratio) = annual CO₂ emissions ÷ (deadweight × distance sailed), the IMO carbon-intensity metric used for CII ratings. It is built only from measured CO₂, distance and deadweight — not the self-reported cargo transport-work figure, which is unreliable. Implausible outliers (top 2% per segment) are excluded. Grade A–E reflects each vessel's rank within its segment. Source: EMSA THETIS-MRV.